Dr. John Montague McCarthy, MD

  • Kyle, TX
  • Emergency medicine physician
NPI1205400363
Medicare services, 2024
223
Medicare patients, 2024
129
Part D claims, 2024
84
Publications
7
Hospital affiliations
1
Practice address
6001 Kyle Pkwy, Kyle, TX 78640
Practice phone
Call (512) 324-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ascension Seton Hays

Hospital · Kyle, Texas

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Dr. John Montague McCarthy is an emergency medicine physician in Kyle, Texas

Dr. McCarthy practices at Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance.

Dr. McCarthy's NPI, 1205400363, was assigned on May 13, 2021. Dr. McCarthy graduated from McGovern Medical School in 2021. Dr. McCarthy holds Texas license U8393.

NPI and contact details
NPI enumeration date
May 13, 2021
NPI status
Active
Practice phone
(512) 324-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
2021

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. John Montague McCarthy practices at Ascension Seton Hays in Kyle, Texas

Dr. McCarthy's primary practice is Ascension Seton Hays, at 6001 Kyle Pkwy, Kyle, TX 78640 in Hays County. The practice phone is (512) 324-5000.

Source: Dmand AI Affiliation Data

Dr. John Montague McCarthy is affiliated with 2 sites of care and 1 medical group

Dr. McCarthy's primary practice is Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance. The medical group on file is Emergency Service Partners, L.P. Dmand AI also links Dr. McCarthy to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. McCarthy

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. John Montague McCarthy's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McCarthy practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ascension Seton HaysAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John Montague McCarthy is one of 4,831 emergency medicine physicians in Texas

Emergency medicine is Dr. McCarthy's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. McCarthy is licensed in Texas.

Specialties and state licenses

  • Emergency medicine, TexasPrimaryLicense U8393 · 2023 to 2027 · taxonomy 207P00000X

Emergency medicine physicians near Dr. McCarthy

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. John Montague McCarthy billed Medicare for 223 services in 2024

CMS data shows 223 Medicare services from Dr. McCarthy across 4 procedure codes in 2024, for 129 Medicare patients. Medicare paid $17,887 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024223
Medicare patients129
Paid by Medicare$17,887
Procedure codes4

Dr. McCarthy's Medicare services by type, 2024

  1. Office and hospital visits128
  2. Tests and treatments95

Dr. McCarthy compared with the Texas median for emergency medicine physicians, 2024

  • Dr. McCarthy
  • Texas median
Medicare services
223vs 225Close to median
Medicare patients
129vs 20637% below

Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.

Dr. McCarthy's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. McCarthy

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McCarthy and other emergency medicine physicians in Texas.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John Montague McCarthy treated 129 Medicare patients in 2024, average age 75

CMS counts 129 Medicare patients who saw Dr. McCarthy in 2024. The largest group is 75 to 84, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. McCarthy's median patient age at 67, with 55% women.

Medicare patients, 2024129
Average age75
Average risk score1.92
Also on Medicaid17%

Dr. McCarthy's Medicare patients by age, 2024

Dr. McCarthy's Medicare patients by sex, 2024

  • Women7357%
  • Men5643%

Chronic conditions among Dr. McCarthy's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Diabetes45%
  5. Mood disorders41%
  6. Ischemic heart disease40%
  7. Atrial fibrillation39%
  8. Anxiety38%

Share of Medicare patients with each condition. A patient can have several.

Dr. McCarthy's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John Montague McCarthy wrote 84 Medicare Part D claims in 2024

In 2024, Dr. McCarthy wrote 84 Medicare Part D claims for 58 patients. 99% of them were for generic drugs.

Part D claims, 202484
Part D patients58

Dr. McCarthy's Part D claims by kind of drug, 2024

  • Generic83 claims99%
  • Brand-name and other1 claims1%

Drug classes CMS tracks in Dr. McCarthy's Part D claims, 2024

  • Antibiotics42%35 of 84 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. John Montague McCarthy has 7 publications on record

Dmand AI links 7 papers to Dr. McCarthy, published from 2018 to 2021. 2018 was the busiest year, with 3. The most frequent topics are Proteins, Autism Spectrum Disorder and Intellectual Disability. Dr. McCarthy's most frequent co-authors are Christian Patrick Schaaf, MD, Bret Bostwick, MD and Joel Martin Charrow, MD.

Papers7
Years published2018 to 2021

Dr. McCarthy's papers by year, 2018 to 2021

Topics Dr. McCarthy writes about most

  • Proteins
  • Autism Spectrum Disorder
  • Intellectual Disability
  • Neurodevelopmental Disorders
  • Phenotype

Dr. McCarthy's most frequent co-authors

Recent publications by Dr. McCarthy

See all 7 publications and co-authors

See who Dr. McCarthy researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. McCarthy works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. John Montague McCarthy received $23 in industry payments in 2023

CMS Open Payments shows 1 general payment to Dr. McCarthy from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Sumitomo Pharma America, Inc. paid the most, $23.

Companies that paid Dr. McCarthy the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. McCarthy

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John Montague McCarthy graduated from McGovern Medical School

Dr. McCarthy graduated from McGovern Medical School in 2021.

  1. Medical schoolMcGovern Medical School

Source: Dmand AI Professional Profile Data

Dr. John Montague McCarthy accepts plans from 14 insurance carriers

Dr. McCarthy is in network with 14 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. McCarthy accepts, by number of carriers

  1. HMO10
  2. PPO7
  3. POS4
  4. EPO3
  5. Medicare3

Source: Dmand AI Insurance Network Data

Sources for Dr. John Montague McCarthy's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John Montague McCarthy

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. John Montague McCarthy's NPI number?

Dr. John Montague McCarthy's NPI number is 1205400363. It was assigned on May 13, 2021, and it is active in the NPI Registry.

What kind of doctor is Dr. John Montague McCarthy?

Dr. John Montague McCarthy is an emergency medicine physician in Kyle, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. John Montague McCarthy practice?

Dr. McCarthy practices at 6001 Kyle Pkwy, Kyle, TX 78640. Dr. McCarthy's primary practice is Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance. Dmand AI also links Dr. McCarthy to 1 group practice or clinic.

What is Dr. John Montague McCarthy's office phone number?

The practice phone on file for Dr. McCarthy is (512) 324-5000.

What is Dr. John Montague McCarthy's medical license number?

Dr. McCarthy holds Texas license U8393.

Which hospitals is Dr. John Montague McCarthy affiliated with?

Dr. McCarthy practices at Ascension Seton Hays in Kyle, Texas.

What medical group is Dr. John Montague McCarthy part of?

Dr. McCarthy is linked to Emergency Service Partners, L.P.

Does Dr. John Montague McCarthy accept Medicare?

Yes. CMS data shows Dr. McCarthy billed Medicare for 223 services in 2024.

How many Medicare patients does Dr. John Montague McCarthy see?

CMS counts 129 Medicare patients who saw Dr. McCarthy in 2024, with an average age of 75.

What services does Dr. John Montague McCarthy bill to Medicare?

In 2024, Dr. McCarthy's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).

Show 6 more questionsShow fewer questions

Where did Dr. John Montague McCarthy go to medical school?

Dr. McCarthy graduated from McGovern Medical School in 2021.

Has Dr. John Montague McCarthy received payments from drug or device companies?

CMS Open Payments shows $23 in general payments to Dr. McCarthy from 1 company from 2023 to 2023. The largest total came from Sumitomo Pharma America, Inc.

How long has Dr. John Montague McCarthy been practicing?

Dr. McCarthy graduated from medical school in 2021, 5 years ago.

Does Dr. John Montague McCarthy do research?

Dmand AI links 7 publications to Dr. McCarthy, published from 2018 to 2021.

Who does Dr. John Montague McCarthy publish with?

Dr. McCarthy's most frequent co-authors are Christian Patrick Schaaf, MD (6 shared papers), Bret Bostwick, MD (1 shared paper) and Joel Martin Charrow, MD (1 shared paper).

What insurance does Dr. John Montague McCarthy accept?

Dr. McCarthy is in network with 14 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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